[ex-snook]

Wonder how they ‘evolved’?

[frithguild]

After the theoretical Big Bang, there were no stars. Eventually, a thick "fog" was effectively burned off by hot, young stars, ending what's called the cosmic Dark Ages.

2 Now the earth was [a] formless and empty, darkness was over the surface of the deep, and the Spirit of God was hovering over the waters.

3 And God said, "Let there be light," and there was light. 4 God saw that the light was good, and He separated the light from the darkness.